First we calculate how many ways you can choose four books from a set of eight.
We use the formula n! / [r! * (n-r)!]
8! / [4! * 4!]
= 8*7*6*5 / 4*3*2*1 = 70 ways
Then we have to calculate how many permutations can be made from 4 objects which equals 4*3*2*1 = 24
So, the TOTAL number of ways = 70 * 24 = 1,680
Answer:
A,D,E
Step-by-step explanation:
I just took the quiz.
The width of a room can be from around 15 cm to about 40 cm.
meaning 1 m
and about less than 1/6 of a km
Hope it helped!
Question is:
Fill in the blanks to solve
.
Answer:

Step-by-step explanation:
Given

Required
Solve
Multiply both sides by x


Make x the subject


12% Of 79 Would be 9.48. Hope this helped :)